Balanced vs Unbalanced Forces Assessment

You and some friends are at the park . You find some rope and decide you’d like to play a game of tug-of-war. Unfortunately, there are 5 people so you can’t have an equal amount of people on each side. One of your friends suggests that the two biggest people should be on one side, while the three smaller people should be on the other side. Do you think this is a fair way to split up teams? Why or why not?

What causes objects to move?

What causes objects to stay still?

Balanced forces cause a change in motion.

You exert a force of 120 N on a desk. Your friend exerts a force of 150 N in the same direction. What net force do you and your friend exert on the desk?

You exert a force of 120 N on a desk to the right. Your friend decides to push the desk from the opposite direction, exerting a force of 150 N. What net force do you and your friend exert on the desk? What will be the direction of the movement?

All of the following statements are true, except...

Calculate the net force and describe the direction of movement.

Will this rocket be able to lift off? Explain your answer using your net force calculations

When finding net force, why must you know the directions of the forces acting on an object?